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Finding the Fourth Proportional to 145,859.96, 218,791.68 and 40,672.52

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Solution

The fourth proportional to 145,859.96, 218,791.68 and 40,672.52 is: 61,009.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,859.96 : 218,791.68 = 40,672.52 : x
  2. Step 2: Convert to fraction form
    145,859.96/218,791.68 = 40,672.52/x
  3. Step 3: Cross multiply
    145,859.96x = 218,791.68 × 40,672.52
  4. Step 4: Simplify right side
    145,859.96x = 8,898,808,980.63
  5. Step 5: Solve for x
    x = 8,898,808,980.63/145,859.96
  6. Step 6: Final answer
    x = 61,009.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.